CVE-2025-38599 (GCVE-0-2025-38599)

Vulnerability from cvelistv5 – Published: 2025-08-19 17:03 – Updated: 2026-08-05 12:03
VLAI
Title
wifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix possible OOB access in mt7996_tx() Fis possible Out-Of-Boundary access in mt7996_tx routine if link_id is set to IEEE80211_LINK_UNSPECIFIED
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3ce8acb86b6614b9f7af794f119f9627efe6b302 , < f82eabd0ff8067d1ee95515f4174c9a9569d54cb (git)
Affected: 3ce8acb86b6614b9f7af794f119f9627efe6b302 , < f43e7d8ae4b6a73213032545552bab26f76f113a (git)
Affected: 3ce8acb86b6614b9f7af794f119f9627efe6b302 , < 64cbf0d7ce9afe20666da90ec6ecaec6ba5ac64b (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.15.10 , ≤ 6.15.* (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f82eabd0ff8067d1ee95515f4174c9a9569d54cb",
              "status": "affected",
              "version": "3ce8acb86b6614b9f7af794f119f9627efe6b302",
              "versionType": "git"
            },
            {
              "lessThan": "f43e7d8ae4b6a73213032545552bab26f76f113a",
              "status": "affected",
              "version": "3ce8acb86b6614b9f7af794f119f9627efe6b302",
              "versionType": "git"
            },
            {
              "lessThan": "64cbf0d7ce9afe20666da90ec6ecaec6ba5ac64b",
              "status": "affected",
              "version": "3ce8acb86b6614b9f7af794f119f9627efe6b302",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.10",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.1",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()\n\nFis possible Out-Of-Boundary access in mt7996_tx routine if link_id is\nset to IEEE80211_LINK_UNSPECIFIED"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The vulnerable path is the mt7996 WiFi 7 TX handler, driven by frames the driver generates in response to an over-the-air MLO association from a wireless peer. Per kernel CNA guidance WiFi-reachable bugs are Adjacent.\nAC:L - `IEEE80211_LINK_UNSPECIFIED` is mac80211\u0027s default link value for every MLD-addressed frame and every fast-xmit frame, so an attacker simply associating with multi-link and prompting any management/action/EAPOL frame reliably drives the index-15 access. No race, timing, or memory-layout condition outside the attacker\u0027s control is involved.\nPR:N - The frames that carry `link_id == IEEE80211_LINK_UNSPECIFIED` include control-port/EAPOL and management frames emitted during MLO association, before the peer is authorized; on open networks no credentials exist at all. No account or capability on the target system is needed.\nUI:N - The AP transmits the offending frames automatically as part of normal MLO association and link management. No action by any local user or administrator is required.\nS:U - The out-of-bounds access and the resulting corruption are confined to the kernel of the affected device; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The out-of-bounds read walks past `link[]` into adjacent struct members and, on the vif path, substitutes `offchannel_link` so frames are transmitted under the wrong wcid/WTBL security context, exposing frame contents with the wrong or absent key. Combined with the memory-safety violation feeding a dereferenced pointer, High is the defensible assessment.\nI:H - The OOB-derived `wcid` pointer is used for writes in `mt76_tx()` \u2014 `__skb_queue_tail()` into `wcid-\u003etx_pending` and `list_add_tail(\u0026wcid-\u003etx_list, \u0026phy-\u003etx_list)` \u2014 so kernel memory is modified through an out-of-bounds-sourced pointer, and the vif path additionally misdirects frames onto the wrong link/peer.\nA:H - Dereferencing the bogus link pointer in `mt76_tx()` faults in the TX path (frequently in softirq context), producing a kernel oops/panic on the AP or client and taking down the wireless device and typically the whole system."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:03:20.543Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f82eabd0ff8067d1ee95515f4174c9a9569d54cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/f43e7d8ae4b6a73213032545552bab26f76f113a"
        },
        {
          "url": "https://git.kernel.org/stable/c/64cbf0d7ce9afe20666da90ec6ecaec6ba5ac64b"
        }
      ],
      "title": "wifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38599",
    "datePublished": "2025-08-19T17:03:34.029Z",
    "dateReserved": "2025-04-16T04:51:24.028Z",
    "dateUpdated": "2026-08-05T12:03:20.543Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-38599",
      "date": "2026-10-01",
      "epss": "0.00209",
      "percentile": "0.10047"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/mediatek/mt76/mt7996/main.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "f82eabd0ff8067d1ee95515f4174c9a9569d54cb",
                    "status": "affected",
                    "version": "3ce8acb86b6614b9f7af794f119f9627efe6b302",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "f43e7d8ae4b6a73213032545552bab26f76f113a",
                    "status": "affected",
                    "version": "3ce8acb86b6614b9f7af794f119f9627efe6b302",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "64cbf0d7ce9afe20666da90ec6ecaec6ba5ac64b",
                    "status": "affected",
                    "version": "3ce8acb86b6614b9f7af794f119f9627efe6b302",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/mediatek/mt76/mt7996/main.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.15"
                  },
                  {
                    "lessThan": "6.15",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.15.*",
                    "status": "unaffected",
                    "version": "6.15.10",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.16.*",
                    "status": "unaffected",
                    "version": "6.16.1",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.17",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2EA7D98E-F04C-44BE-AC61-F5ADC4C88EC6",
                    "versionEndExcluding": "6.15.10",
                    "versionStartIncluding": "6.15",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "58182352-D7DF-4CC9-841E-03C1D852C3FB",
                    "versionEndExcluding": "6.16.1",
                    "versionStartIncluding": "6.16",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()\n\nFis possible Out-Of-Boundary access in mt7996_tx routine if link_id is\nset to IEEE80211_LINK_UNSPECIFIED"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: mt76: mt7996: Se corrige el posible acceso OOB en mt7996_tx() Se corrige el posible acceso fuera de l\u00edmite en la rutina mt7996_tx si link_id est\u00e1 configurado en IEEE80211_LINK_UNSPECIFIED"
          }
        ],
        "id": "CVE-2025-38599",
        "lastModified": "2026-07-30T06:23:29.873",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.2,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-08-19T17:15:37.903",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/64cbf0d7ce9afe20666da90ec6ecaec6ba5ac64b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f43e7d8ae4b6a73213032545552bab26f76f113a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f82eabd0ff8067d1ee95515f4174c9a9569d54cb"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-30T09:03:30+00:00",
      "cve": "CVE-2025-38599",
      "id": "CVE-2025-38599",
      "initial_release_date": "2025-08-19T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38599.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-30T01:53:36Z",
      "cve": "CVE-2025-38599",
      "id": "CVE-2025-38599",
      "initial_release_date": "2025-08-19T23:23:08Z",
      "product_status:known_not_affected": "524",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38599",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38599.json",
      "version": "7"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.